Device for molding concrete slabs or blocks.



M. MOORE.

DEVICE FOR MOLDING CONCRETE SL ABS 0R BLOCKS. APPLLcATloN man' MAY31,1916.

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M. MOORE.. DEVICE FOR MOLDING CONCRETE SLABS 0R BLOCKS.

APPLICATION FILED MAY 3l. 1916. 1,21 9,131. Patented Mar. 13, 1917.

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IVJSEIRIRIIJLI MOORE, OF CRESTON, IOWA.

DEVICE FOR MOLDING CONCRETE SLABS 0R BLOCKS.

sreciatio of Leiters Patent, Patented Mar. 13, 1917.

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To all 'u1/wm it may concern:

Be it known that I, MERRILL rMooRE, a citizen of the United States,residing at Creston, in the county of Union and State of lowa, haveinventedcertain new and useful Improvements in Devices for MoldingConcrete Slabs or Blocks, of which the vfollowing is a specification.

This invention relates to moldsforf producing concrete slabs or buildingblocks and is especially designedy to provide a mold which may bereadily assembled into a suitable series of molds, and the removableparts easilyand quickly disassembled-to remove therefrom the moldedproducts.

The prime object ofl my inventionis to provide a simple, economical,durable, and thoroughly efficient device for producing a concrete slabor block having embedded therein a metal reinforcement which also serves`as a means for tying or bonding the said slabs or blocks together.

Another object of this invention is to mold or cast a series of concreteslabs or blocks on end at the same time, `lin a single structure, whichincludes a'series or any suitable or desirable number of-molds combinedtogether and lirmly secured-'so that 'the Aentirel series of molds maybe handled as a unitary device. f

A further object of the inventionV is to provide a novel device -whichwill form building slabs of uniform thickness at their central or bodyportion and'- at each side thereof will be formed a reduced'eXtension ofonly one half the thickness of said central or body portion, each-slabor block having embedded cross-wise therein in an inclined position, tworeinforcing rods, each rod having a loop or eye formed at either endthereof and terminating within the reduced extended portion at each sideof the block.-- Y f* A stil-1 further object-j of the invention is toprovide a 'simplel device constituting a series of molds securedtogether by means which hold the reinforcing rods in the slabs in theirproper position,` said means'passing through each slab and each loop orveye forming apartof the reinforcement, thereby forming a hole throughthe slab at four different points, through which holes bolts or pins areused for fastening the slabs together during the process of constructinga building with the Said slabs.

The foregoing and such other objects as -may appear 'from the ensuingdescription are attained by lthe novel features of construction,combination, arrangement and location of the parts, hereinafter fullydescribed, illustrated in the accompanying drawings, andpparticularlypointed out in the claimsv'appended hereto, it being understood`that-slight changes in the form, proportions, and minor details of theconstruction may be resorted to; without departing from the spirit orsacrificing any of the advantages of the invention.

4In the accompanying drawings it will be seen that Figure 1,-is aperspective view showing lthe' improvcd'de-vice embodying my invention,l l

" Fig. 2, is a plan view ofthe same.

Fig. 3, is a transverse sectional'view,taken on the line n n/,Fig l.

Fig. 4, is a sectional elevation of the same, taken on the lineJ b-b,Fig. 2.

Fig. 5, is a perspective view showing a series of the slabs with meansfor tying or binding th'emtogether shown by dotted lines.

' Similar'numerals of reference are employed todesignate correspondingparts `throughout theseveral figures of the draw- 1n s.

n carrying out my invention as illustratedand which shows a preferredconstruction, Figs. 1, 2, 3 and 4 show a series off three molds unitedtogether in a single structure, but it will be understood that anysuitable number. of molds may be assembled together, which maybe-readily handled by the manipulator of the molding process.

Having reference to the drawings, the numeral 1 indicates a plate ofsheet metal secured in `a .vertical position forming one end of the moldstructure, 2 is a corresponding plate secured in a ver-ticalpositionforming or constituting the other end of the structure, while 3 and Ldesignate division or partition plates, all of said plates being of thesame material, positioned vertically, and secured at any suitabledistance apart dependent upon the thickness of the slab it is desired tomold.

Rigidly secured between the vertical plates, at a point near the outeredge or side portion V-tllereof is a vertical sheet metal member 5,forming one of the side walls of Vertical side Walls secured to saidplates, chamber, forming a hole in the slab, and each side Wallconsisting of two lateral eX- clamping the mold elements together, saidtensions and two upright Walls at a right rods serving to support aplurality of rein- 10 angle to said lateral extensions adapted toforcing rods Within each mold, and means 5 form extended moldingchambers, a plufor securing the rods at each yend thereof.

rality of rods passing through the said Vertical plates and through partof the molding MERRILL MOORE.

Copies of this patent may be obtained for ve cents each, by addressingthe Comlnissioner of Patents,

' Washington, D. C.

